Cake-baking pan



May 2l, 1929. R.:H. wEN'roRF CAKE BAKING PAN 'Filed May 2, 1924 Innen/07'. H0366@ H n'orf Patented May 21,` 1929.

UNITED STATES 1,713,571 PATENT OFFICE.

ROBERT H. WENTORF, 0F WEST BEND, WISCONSIN, lASSIGN'OR T0 WEST BEND ALUMI- NUM COMPANY, ACORPORATION 0F WISCONSIN.

CAKE-Baume PAN.

.Application med may 2, 1924. serial No. 710,484.

This invention relates to a cake baking pan and more particularly to a baking pan with a removable bottom for baking cakes.

One of the objects of the present invention is to provide an improved form of a cake baking pau with a removable bottom and having a. construction which gives unusual strength and rigidity to the places that can be most easily damaged by rough handling and thereby insuresr perfect cake baking results over a long period of time.

A further object of the inventionis to provide an improved form of removable bottom for a cake pan and in which the removable bottom is adapted to seat itself snugly in the bottom of the pan proper in a manner which prevents the cake batter from seepng vout of the pan. p

A still further object of the invention is to provide a general improved form of cake pan which enables the Y'housewife to easily remove the cake from the pan after baking without damaging it.

These and other objects-are accomplished by providing a construction and an arrangement of the various parts in a manner'hereinafter described and pointed out in the ap`` pended claims. i

Referring to the drawings, Fig. 1 is a cross sectional View taken on a vertical plane passing through the diameter of the pan showing the construction of my improved cake baking pan, and

Fig. 2 is an enlarged fragmentary view partly in section, showing the removable bottom partially removed from its seat in the bottom proper of the pan. Y A

In the form of cake baking pans now in general use.' of the type provided with a removable bottom, the bottom is usually a flat disc-like member which seats itself on a flange forming the bottom proper of the pan. lVith this construction it is im.- possible to maintain the inset or removable bottom in contact with the bottom proper of the pan, especially so, after the pan has been used for any length of time, as dents are usually formed in the removable bottom and in the flange of the panA causing the im-v proper seating of the removable bottom on 'the bottom of the pan proper, and thereby permitting the cake batter to seep through the removable bottom and the bottom of the pan proper.

In carrying out my invention I have shown the same in connection with a cake baking pan which is ordinarily used to bake angel cake and the like, and comprises a relatively deepV pan 5 having a relatively tapered Wall 6 which is strengthened at the upper end by the usual beadl 7. The I bottom of the pan isprovided with an annular concavity or groove 8 which extends entirely around the pan adjacent the bottom of the wall 6. The groove 8 is y'substantially semicircular .in cross section as shownin `and reinforces and strengthens the bottom proper of the pan. Mounted in the pan 5 is a removable bottom 11 which is in the form Aot a disc-member and has formed ad-y `jacent its peripheral edgeon the lower side thereof, a bead 12 which is semi-circular in cross section and adapted to be seated in the annular groove or concavity 8 in the bottom of the pan 5. .y 'I f It will be `noted that the bead 12 of the removable bottom 1l is so formed with respect to the annular groove 8 of the pan 5v that the flat portion 9 of the pan 5 substantially contacts with the lower side of the removable bottom 11 when the removable bottom is properly seated in the bottom proper of the baking pan. This constructiony it will readily be seen affords a very snuglyrfitting connection between the removable bottom and the bottom proper of the 4pan,vand further insures or prevents the cake batter from seeping between the removable bottom and the bottom of the pan.

It will further be noted that by positioning the peripheral bead on the removable bottom that I have provided unusual strength and rigidity to that part of the removable bottom which can be most easily ldamaged by rough handling, and at the same time provided a construction in which the pan proper is reinforced and strengthened by the provision of the annular groove 8 and the circularbead 10 formed in the bottom of the pan. The removable bottom 11 is provided with a conical member 13 which is secured centrally in an aperture of the bottom prefgtionmay assume, it will of course be understood that the same is capable of modificaL tion and that modification maybe made without departing` from the spirit and scope of my invention as expressed in the following claims.

' Vhat- I claim as my invention and rdesire to secure by Letters Patent is:

1. The combination with a baking pan of a removable bottom therefor, an annular v,groove formed in the bottom of said pan adj acentthe wall thereof, and a bead formed on the edge of `said removable bottomin a manner to provide a flat surface on its upper side, said beadbeing adapted to seat in said groove to form a single jointadjacent bottom of said wall.

2. A baking pan comprising ay circular wall, a bottom portion having an opening and an annular groove formed therein, said groove being positioned adjacent said wall, a removable bottom having a flat surface extending over its entire upper side, and a peripheral bead formed on the lower side of said removable bottom and adapted to seat in. said Vgi'oove in a manner to form a joint Vbetween said removable bottom and pan adjacent said wall. Y

8.' Abaking pan comprising an inclined circular wall, a bottom portion having an opening therein formed integrally with said Wall and having an annular groove formed in said bottom portion adjacent said wall in a manner to form a continuation thereof, a removable bottom, and a 'closed bead formed the on the lower side and peripheral edge of said removable Vbottom adapted to it snugly in said groove in a manner to form a single joint between said removable bottom and pan adjacent said wall.

4 A baking pan comprising an inclined circular wall, a bottom formed in said pan having an opening' therein, a circular bead formed in the bottom of said Vpan for reinforcing and strengthening said bottom, said bottom having a groove formed therein and a removable bottom having a peripheral bead of semicircular cross section formed on the edge thereof and adapted to be seatedin the groove in the bottom of said pan for snugly securing said removable bottom to said pan.

5.. A baking pan comprising an inclined circular wall, a bottom formed in said pan iaving Aan opening therein, a circular bead formed in the bottom of' said pan adjacent the opening therein for reinforcing and strengthening said bottom7 said bottom having a. circular groove formed therein and a removable bottom having a flat top and a bead of semi-circular cross section formed on the periphery thereof and on the lower side of the removable bottom for seating said removable bottom in the bottom of said pan and providing a bottom having aI fiat upper side and a. single joint adjacent the bottom of said wall.V

6. A baking pan comprising an inclined circular wall, a bottom portion having an opening therein formed integrally with said wall and having an annular groove formed in said bottom portion adjacentsaid wall in a manner to form a continuation thereof, a removable bottom having a lat top surface, and a closed bead formed on the lower side and peripheral edge of said removable bottom adapted to fit snugly in said groove in a. manner to form a single joint between said removable bottom and pan adjacent said wall. j

In testimony whereof I have signed my name to this specification, von this 26th day of April, A. D. 1924.

ROBERT H. NVENTORF. 

